doi:10.3390/sym11111401engCarmona, José ManuelCortés, José LuisRelancio, José JavierSpacetime and deformations of special relativistic kinematicsART-2019-115874A deformation of special relativistic kinematics (possible signal of a theory of quantum gravity at low energies) leads to a modification of the notion of spacetime. At the classical level, this modification is required when one considers a model including single- or multi-interaction processes, for which absolute locality in terms of canonical spacetime coordinates is lost. We discuss the different alternatives for observable effects in the propagation of a particle over very large distances that emerge from the new notion of spacetime. A central ingredient in the discussion is the cluster decomposition principle, which can be used to favor some alternatives over the others.2019http://zaguan.unizar.es/record/8774710.3390/sym11111401http://zaguan.unizar.es/record/87747oai:zaguan.unizar.es:87747info:eu-repo/grantAgreement/ES/DGIID-DGA/2015-E24-2info:eu-repo/grantAgreement/ES/MINECO-FEDER/PGC2018-095328-B-I00Symmetry 11, 11 (2019), 1401 [13 pp.]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess